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Re: Cross-breeding Vs Inbreeding

Daniel Carle wrote:
> 
> Don't get mad at me! The following is only my opinion and if I'm wrong it's
> probably because of  my limited
> knowledge in taxonomy and genetics.
> 
> A dog is a dog and a human is a human. Cross-breeding exists for the human
> race and I think it gives
> positive results. On the other hand, inbreeding brings more "problems" than
> advantages. Dogs were cross-bred
> for centuries to create what we now call "pure bred". To keep that pure bred
> we have to inbreed them sometimes.
> You end up with a pure bred with weak and strong points. Don't try to send a
> poodle to the wild, but it will do fine
> (?) in your house! I see a big ethical problem with inbreeding if you
> eventually end up with sterile animals. Hitler
> philosophy (or sickness ?!) was against cross-breeding ...
> 
> Going back to fish ...
> 
> I have nothing against cross-breeding fish if they are kept in an aquarium;
> sending the cross-bred to the wild is different (don't send your poodle to
> the jungle)! The biggest problem I see with keeping a "pure line" is that
> the fertility goes down a lot after a few generation because of inbreeding.
> How can you avoid inbreeding with a few couples of fish found in the wild 15
> years ago? How do you keep them fertile for 15 years? Cross-breeding would
> be a solution to bring "new blood" in the line (don't hit me!).
> 
> I have many question regarding classification of species:
> 
> 1- The confusion between Aphyosemion and Fundulopanchax
> 
> 2- Why 2 genetically compatible species (or sub-species or whatever) are not
> considered a unique fish with just
>     different coloration ?
> 
> 3- Is it possible that very similar species from close location in the wild
> are the result of natural cross-breeding?
> 
> 4- What fish are considered to be part of the "Gardneri group" and why?
> 
> Daniel Carle
> Montreal

> The whole idea behind maintaining killies is to maintain the species. This is due to the fact of lost habitats and of course deforestation, 
war, and just down right destruction of habitats. We want to record and 
maintain these fishes that is why they are named after places in which 
they are found so that if we lose a male or a female we can replase it 
with out ruining the population. I say enough of the cross breeding it 
is wrong . We are not here to discuss dogs or cats not anyother type of 
animal but killies. Lets keep to the topic. The AKA says no. :( Bob
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